#include <stdio.h>
double fact(int n);
int main(void)
{
	int i, n;
	double result;
	printf("Enter n:");
	scanf("%d", &n);
	for(i=0;i<=n;i++)
	{
		result = fact(i);
		printf("%d!=%.0f\n", i, result);
	}
	return 0;
}
double fact(int n)
{
	int i;
	double product;
	product = 1;
	for (i=0;i<=n;i++)
{
		product = product * i;
	}
	return product;
}
